Looking for better fuel mileage - Ford Powerstroke Diesel Forum
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Old 03-16-2013, 04:02 AM
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Looking for better fuel mileage

I have an 2008 cc/sb 6.4 with 76k miles and so far I have an H&S mini max with KEM performance nutty professor tune DPF delete and cold air intake, and I drive some what conserving keeping it around 65mph and I average 300 miles to a tank of fuel, now I was wondering what else I could do for better mileage?
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Old 03-16-2013, 04:07 AM
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Also was considering a lift pump if that will help what the best one, I've had an air dog on my duramax but was also looking at the FASS lift pump but want to know what the easiest install and best for fuel mileage
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Old 03-16-2013, 04:39 AM
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i don't think you need a lift pump quite yet considering your mod list and goals, you can try a sump at the bottom of your fuel tank if you really wanna get all the fuel you need out of it instead of a lift pump.. but honestly i couldn't tell you how to get better fuel milage except for tires
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Old 03-16-2013, 04:46 AM
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Quote:
Originally Posted by kendallcschm View Post
i don't think you need a lift pump quite yet considering your mod list and goals, you can try a sump at the bottom of your fuel tank if you really wanna get all the fuel you need out of it instead of a lift pump.. but honestly i couldn't tell you how to get better fuel milage except for tires
Funny you say that about tires because I just put american force 22" rims with 35 toyo open country tires and since my fuel milage has been down
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Old 03-16-2013, 04:56 AM
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getting 300 miles per tank does not equate to a meaningful number...is 65 mph at unloaded or pulling ? what does your info screen say for miles to go after you fill up ?
hand calculate brimful to brimful for your only true milage burn indicator.its worthwhile taking the time to just do this once and you'll know exactly where you stand.
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Old 03-16-2013, 05:04 AM
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Do you need to, or did you recalculate for tire size?? Or are they the same??
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Old 03-16-2013, 06:31 AM
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Tips for mileage:

Keep filters clean.
Reduce parasitic loss of power.
Keep egts as low as you can, drive according to temps not speed limit signs.
Keep boost low while cruising
Air pressure in tires maxxed. Highway treaded low rolling resistance tires.
Run good quality fuel.

At least 75% of fuel economy is driving habits.. I'd reckon the mean average for these rigs when tuned and deleted is about 15mpgs unloaded.. if you're not getting that, and you've addressed the items listed above, you need to consider driving habits as your limiter.
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Old 03-16-2013, 08:43 AM
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Quote:
Originally Posted by extremef350 View Post
Funny you say that about tires because I just put american force 22" rims with 35 toyo open country tires and since my fuel milage has been down
that'll do it! bigger heavier higher resistance tires! fuel additives may help if you can find a good distance one
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Old 03-17-2013, 11:39 AM
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I have heard that using synthetic oil can help mpgs. and the motor!
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Old 03-17-2013, 03:18 PM
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stay off the throttle
use ford cetane boost

dunno if your tunes are geared for economy.

also 355 gears will get better fuel eco than 373. i dunno if they ever made 331 for the 64.
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